CN101552649B - Resource scheduling method and device based on orthogonal frequency division multiplexing multiuser multiple antennae - Google Patents

Abstract

The embodiment of the invention discloses a resource scheduling method based on orthogonal frequency division multiplexing multiuser multiple antennae. The method comprises the following steps: the current assignable resource collection of each antenna and the scheduling user channel quality of each resource unit of each resource collection are determined; after determined, the best channel quality is taken as the scheduling channel quality; resource units of each antenna, which have the scheduling channel quality, are determined; and the resource units with the scheduling channel quality is selected for scheduling. The embodiment of the invention also discloses a base station. Adopting the resource scheduling method enables system resources to be more reasonably utilized, thereby better service is provided for users.

Description

Resource regulating method and device based on orthogonal frequency division multiplexing multiuser multiple antennae

Technical field

The present invention relates to field of wireless transmission, relate in particular to a kind of resource regulating method and device based on orthogonal frequency division multiplexing multiuser multiple antennae.

Background technology

Method based on technological multi-user multi-antenna (MIMO) scheduling of resource of OFDM (OFDM) under time division duplex (TDD) pattern is; At first select an antenna; Choose then that the best resource of channel quality is used to send data in this antenna, concrete realization flow is following:

Step 1: confirm each Physical Resource Block in current assignable resource collection and this resource collection (Phsical Resource Block, PRB) corresponding channel quality indication (CQI) parameter value;

Said resource collection is designated as λ _DL-L, λ _DL-LIn the corresponding CQI of each PRB be designated as: $C_{{\mathrm{\λ}}_{\mathrm{DL}-L}}=\{c_u^1,c_u^2\·\·\·,c_u^{q_u}\};$ U ∈ U wherein _DL, q _u=N (λ _DL-L), N representes the element number in the set of computations;

Step 2: from each CQI that confirms, select maximum CQI;

Promptly calculate ${\mathrm{CQI}}_{\mathrm{Max}}=\underset{k=\mathrm{1,2},\·\·\·,q_u}{\mathrm{Arg}\mathrm{Max}}\left(c_u^k\right);$

Step 3: (Adaptive Modulation Coding, AMC) table are confirmed modulating-coding table (Modulation CodingScheme, MCS) parameter of spendable high-order under the maximum CQI through searching self adaptation debugging coding;

The MCS parameter of the high-order of confirming is designated as: MCS _C-L

Step 4: according to the PRB set of the MCS parameter that can use definite high-order in the CQI statistics resource collection;

The PRB set of statistics is designated as R _C-LAnd make M _C=N (R _C-L);

Step 5: but confirm a PRB data carried by data amount according to the CQI of maximum, and then calculate the maximum amount of data that can transmit in this time slot scheduling according to this data volume;

But a PRB data carried by data amount of confirming is designated as TBS ^UThe maximum amount of data TBS that can transmit in this time slot scheduling of calculating in view of the above ^F=δ _DL(TBS ^U* M _C), δ _DLExpression rounds;

Step 6: if the data volume of sending in the buffering area is less than or equal to the maximum amount of data that can transmit in this time slot scheduling, the number N of assignable PRB then _CConfirm as TBS ^R/ TBS ^FOr greater than TBS ^R/ TBS ^FSmallest positive integral, can confirm simultaneously the data volume A that can send in this scheduling _C-LFor sending the data volume in the buffering area;

If the data volume in the transmission buffering area is greater than the maximum amount of data that can transmit in this time slot scheduling, the number N of assignable PRB then _CConfirm as M _C, can confirm the data volume A that can send in this scheduling simultaneously _C-LBe the maximum amount of data that can transmit in this time slot scheduling;

Step 7: if N _C＜M _C, the PRB number that promptly needs is less than the PRB number that can distribute, then from R _C-LThe middle N that selects _CIndividual PRB will be by the N that selects _CThe resource collection that individual PRB forms is designated as R _C-L

Through carrying out above-mentioned flow process, the final scheduled resources set of confirming that is used for is R _C-L, the data volume that this scheduling can be sent is A _C-L, the AMC parameter that adopts when data are sent is MCS _C-L

In realizing process of the present invention, the inventor finds to exist at least in the prior art following technical problem:

Present resource regulating method; Be with CQI in the assignable resource collection on the antenna preferably or preferably resource be used to send data; And this resource is not the optimal selection of CQI probably for this user; Carry out scheduling of resource according to prior art, system resource is not rationally utilized, and flexibility is relatively poor.

Summary of the invention

The embodiment of the invention provides a kind of resource regulating method and device based on orthogonal frequency division multiplexing multiuser multiple antennae, in order to solve the problem that system resource is rationally utilized, flexibility is relatively poor in the scheduling of resource process in the prior art.

The embodiment of the invention provides a kind of resource regulating method based on orthogonal frequency division multiplexing multiuser multiple antennae, and this method comprises:

Confirm the current assignable resource collection of each antenna, and in said each resource collection each resource units for the channel quality of dispatched users;

Confirm channel quality best in the said channel quality, with this channel quality as the scheduling channel quality;

Confirm that said each antenna has the resource units of said scheduling channel quality;

Choosing said resource units with said scheduling channel quality dispatches.

The embodiment of the invention provides a kind of base station, and this base station comprises:

First confirms the unit, be used for confirming the current assignable resource collection of each antenna, and in said each resource collection each resource units for the channel quality of dispatched users;

Second confirms the unit, be used for confirming the best channel quality of said channel quality, with this channel quality as the scheduling channel quality;

The 3rd confirms the unit, is used for the resource units of confirming that said each antenna has said scheduling channel quality;

The scheduling of resource unit is used to choose said resource units with said scheduling channel quality and dispatches.

Among the present invention, when carrying out scheduling of resource, at first confirm the current assignable resource collection of each antenna; And in said each resource collection each resource units for the channel quality of dispatched users; And best channel quality in the said channel quality, then with this channel quality as the scheduling channel quality, and confirm the resource units that said each antenna has said scheduling channel quality; Choosing said resource units with said scheduling channel quality dispatches; It is thus clear that dispatch through choosing in all antennas the best resource units of current channel quality, can better service be provided for the user, system resource is reasonably used.

Description of drawings

Fig. 1 is the schematic flow sheet of method that the embodiment of the invention provides;

Fig. 2 is the example process sketch map of method that the embodiment of the invention provides;

Fig. 3 is the structural representation of base station that the embodiment of the invention provides.

Embodiment

For optimization property and the flexibility that improves scheduling of resource; Make system resource obtain reasonable use more; The embodiment of the invention provides a kind of resource regulating method based on orthogonal frequency division multiplexing multiuser multiple antennae, in this method, chooses in all antennas the best resource units of current channel quality and dispatches; Thereby for the user provides better service, system resource is reasonably used.

Referring to Fig. 1, the resource regulating method that the embodiment of the invention provides based on orthogonal frequency division multiplexing multiuser multiple antennae, concrete realization flow is following:

Step 10: confirm the current assignable resource collection of each antenna, and in said each resource collection each resource units for the channel quality of dispatched users;

Step 11: confirm channel quality best in the said channel quality, with this channel quality as the scheduling channel quality;

Channel quality specifically can indicate (CQI) parameter to represent with channel quality; Normally represent the good channel quality with bigger CQI parameter value, the method for therefore confirming best channel quality is that channel quality that the CQI parameter value is maximum is as best channel quality.Certainly, also can represent relatively poor channel quality with less CQI parameter value, the method for therefore confirming best channel quality is that channel quality that the CQI parameter value is minimum is as best channel quality.

The concrete implementation method of this step can be:

At first, for said each antenna, the pairing channel quality of each resource units in the assignable resource collection of this antenna is sorted;

Then, choose channel quality best in each ranking results;

At last, obtain best channel quality in said each channel quality of choosing, with this channel quality as said scheduling channel quality.

Step 12: confirm that said each antenna has the resource units of said scheduling channel quality;

Step 13: choose said resource units and dispatch with said scheduling channel quality.

The concrete implementation method of this step can be:

At first, for said each antenna, confirm that this antenna has the quantity of the resource units of said scheduling channel quality;

Then, select the maximum antenna of said quantity, from this antenna, choose resource units and dispatch with said scheduling channel quality.

The concrete implementation method of this step can also be, chooses the antenna that one or more has said scheduling channel quality at random or in certain sequence, from said antenna, chooses the resource units with said scheduling channel quality then and dispatches.

When choosing resource units, can choose a resource units and dispatch with said scheduling channel quality, also can choose a plurality of resource units and dispatch with said scheduling channel quality.When choosing a plurality of resource units and dispatch, can according to configuration information maybe the needs data volume of sending decide and specifically choose several resource units and dispatch.

After this resource units of choosing some was dispatched, whether the data volume that needs judgement to need to send also existed residue, if having, then proceed scheduling of resource, otherwise scheduling is accomplished, and is specific as follows:

The data volume that can send based on this scheduling and the data volume that needs to send are calculated the remaining data volume of sending of needing, that is: the data volume that data volume-this scheduling can be sent of the remaining data volume=needs transmission that needs to send;

If the remaining data volume that needs to send is not empty; Then from the current assignable resource collection of each antenna, search the resource units that channel quality is said scheduling channel quality; If find, then to choose the said resource units that finds and dispatch, concrete choosing method is with step 13; Otherwise, consider to reduce CQI and come guaranteed qos, from the current assignable resource collection of each antenna, search the resource units that channel quality is lower than said scheduling channel quality; If find, then choose the said resource units that finds and dispatch, otherwise; Do not satisfy schedulable condition, the scheduling failure.When having a plurality of channel quality less than said scheduling channel quality, can select channel quality near said scheduling channel quality.Here, not finding channel quality when being the resource units of said scheduling channel quality, can also take to finish the mode that scheduling flow withdraws from scheduling, i.e. this scheduling does not consider to reduce CQI.

If the remaining data volume that needs to send is empty, then scheduling is accomplished.

Preferable; In order to limit this business and user's data flow, service is provided for more business and user, after this resource units of choosing some is dispatched; Can judge that whether data volume that this scheduling can send is more than or equal to the scheduling threshold value that is provided with; If then finishing scheduling utilizes the resource units in the scheduling result to carry out the data transmission; If not, then calculate the remaining data volume that needs transmission, and then whether decision proceeds scheduling of resource.

As shown in Figure 2, the complete instance for the scheduling of resource process specifically comprises the steps:

Step 20: confirm the current assignable resource collection of each antenna;

Step 21: judge whether the resource units in the resource collection is empty, if then arrive step 22; Otherwise, to step 23;

Step 22: do not satisfy schedulable condition, withdraw from scheduler;

Step 23: confirm in each resource collection each resource units for the channel quality of dispatched users, and choose channel quality best in all channel qualities as the scheduling channel quality through ordering;

Step 24: search the position of the resource units that has the current scheduling channel quality in all antennas and the position of respective antenna;

Step 25: with the position of the resource units that finds, the position of respective antenna, and the current size (showing the data volume that current needs send) that needs the data buffer zone of scheduling, as scheduling preparatory condition input scheduling device;

Step 26: scheduler schedules Resources allocation; Concrete; At first confirm to dispatch the maximum antenna of resource units that has said scheduling channel quality in the preparatory condition; From this antenna, choose a resource units then and dispatch, and the resource units of choosing is recorded preemption with in the resource collection with said scheduling channel quality;

Step 27: calculate the remaining data volume of sending of needing in scheduling back, and the size of the renewals data buffer zone that needs to dispatch in view of the above;

Step 28: judgement needs whether the buffer size of scheduling is 0, if then arrive step 34; Otherwise, to step 29;

Step 29: whether the data volume that scheduled resources can be sent in the determining step 26 more than or equal to the scheduling thresholding, if, then arrive step 34, otherwise, step 30 arrived;

Step 30: judged whether that surplus resources can be used to scheduling, judged whether that promptly all resource collections are for empty, if then arrive step 31; Otherwise, to step 34;

Step 31: position and the position of respective antenna of searching the resource units that is in idle condition (be unoccupied and do not recorded preemption) that has said scheduling channel quality in all antennas according to current each resource collection with in the resource collection;

Step 32: judge whether to find resource units, if then arrive step 25 with said scheduling channel quality; Otherwise, to step 33;

Step 33: the channel quality of confirming time to be lower than (promptly be lower than and the most approaching) said scheduling channel quality based on ordering; With the channel quality confirmed as the scheduling channel quality; And search the position of the resource units that has the current scheduling channel quality in all antennas and the position of respective antenna based on current each resource collection, to step 25;

Step 34: take preemption and carry out the data transmission with all resource units in the resource collection, scheduling is accomplished.

Adopt the mode of algorithmic descriptions that the method that the embodiment of the invention provides is carried out clearer explanation below:

The algorithm input:

The number of antenna: A _n

The available resource set of an antenna: λ _DL ^An

The size that needs the data buffer zone of scheduling: BO _Ri ^u, u ∈ U _DL, U _DLSet for all users;

The available resource set of all antennas $P_a^w=\{{\mathrm{\λ}}_1,{\mathrm{\λ}}_2\·\·\·,{\mathrm{\λ}}_h\},$ H ∈ k, k=N (λ _DL ^w), w={1,2 ..., A _n;

λ _DL ^AnMiddle resource units is for this dispatched users u ∈ U _DLCorresponding CQI set is designated as $C_u^{{\mathrm{\λ}}_{\mathrm{DL}}^w}=\{C_u^1,C_u^2\·\·\·,C_u^k\},$ U ∈ U _DL, k=N (λ _DL ^w), w={1,2 ..., A _n.

Algorithm output:

The result of the scheduling of resource of every antenna: R _{λ An}

Specific algorithm:

Below be to be the process that a user carries out scheduling of resource, the scheduling process below only needing during the multi-user repeatedly to carry out:

Step S01: according to $C_u^{{\mathrm{\λ}}_{\mathrm{DL}}^w}=\{C_u^1,C_u^2\·\·\·,C_u^k\},$ With λ _DL ^AnIn resource units according to CQI rank order from big to small, count on P _DL ^wSet in $P_{\mathrm{DL}}^w=\{{\mathrm{\λ}}_{{\mathrm{MCS}}_j}^t,{\mathrm{\λ}}_{{\mathrm{MCS}}_j}^t\·\·\·,{\mathrm{\λ}}_{{\mathrm{MCS}}_j}^t\},$ T ∈ k, k=N (λ _DL ^w), w={1,2 ..., A _n;

Step S02: from $C_u^{{\mathrm{\λ}}_{\mathrm{DL}}^w}=\{C_u^1,C_u^2\·\·\·,C_u^k\},$ U ∈ U _DL, k=N (λ _DL ^w), w={1,2 ..., A _nIn get access on the every antenna maximum CQI promptly ${\mathrm{CQI}}_{\mathrm{Max}}^w=\underset{l=\mathrm{1,2}\·\·\·k}{\mathrm{Arg}\mathrm{Max}}\left(C^l\right);$

Step S03: from CQI _Max ^wIn obtain in all antennas maximum CQI: ${\mathrm{CQI}}_{\mathrm{Max}}=\underset{l=\mathrm{1,2}\·\·\·,A_n}{\mathrm{Arg}\mathrm{Max}}\left({\mathrm{CQI}}_{\mathrm{Max}}^s\right);$

Step S04: the scheduling CQI that confirms use: ${\mathrm{CQI}}_{\mathrm{Sche}}={\mathrm{CQI}}_{\mathrm{Max}}^w;$

Step S05: $R_p^w=N\left(P_{\mathrm{DL}}^w\right),$ W={1,2 ..., A _nIn confirm that every antenna CQI is CQI _ScheThe number of resource units $S_{\mathrm{Max}}^x=\mathrm{Arg}\mathrm{Max}\left(R_p^w\right),$ W={1,2 ..., A _n, x ∈ { A _n;

Step S06: according to $S_{\mathrm{Max}}^x=\mathrm{Arg}\mathrm{Max}\left(R_p^w\right),$ W={1,2 ..., A _n, x ∈ { A _n, confirm that CQI is CQI _ScheThe antenna of most number of resource units, choose a resource units RU in this antenna _g ^w, g ∈ k, w={1,2 ..., An} carries out resource allocation, and records preemption with resource collection R ' _{λ An}In;

Step S07: calculate the data volume BO that this scheduling can be sent _Si, and the remaining data volume that needs transmission ${\mathrm{BO}}_{L_i}={\mathrm{BO}}_{R_i}-{\mathrm{BO}}_{S_i},$ If BO _Li==0, then scheduling is accomplished, otherwise execution in step S08;

Step S08: if BO _RiMore than or equal to scheduling thresholding Q _Limit, then satisfy the scheduling requirement, dispatch successfully, to step S13; Otherwise whether statistical system also exists surplus resources, promptly calculates $R_{L_{A_n}}=P_a^w-{R^{\′}}_{{\mathrm{\λ}}_{A_n}};$

Step S09: if $R_{L_{A_n}}==\mathrm{\φ},$ Then do not satisfied schedulable condition scheduling failure; Otherwise, execution in step S10;

Step S10: from $C_{{\mathrm{\λ}}_{\mathrm{DL}}^w}=\{C^1,C^2\·\·\·{,C}^k\}$ Look for C in the set ^r==CQI _Sche, the resource of r ∈ k, if do not find execution in step S11, otherwise execution in step S12;

Step S11: from $C_{{\mathrm{\λ}}_{\mathrm{DL}}^w}=\{C^1,C^2\·\·\·,C^k\}$ Look for time little CQI in the set _TempIf, find, then make CQI _Sche=CQI _Temp, to step S12; Otherwise, do not satisfy schedulable condition, the scheduling failure;

Step S12: redistribute resource to the flow process of step 11 according to step 5;

Step S13: after dispatching successfully, confirm the resource that takies $R_{{\mathrm{\λ}}_{A_n}}={R^{\′}}_{{\mathrm{\λ}}_{A_n}},$ Scheduler is accomplished scheduling.

Referring to Fig. 3, the embodiment of the invention also provides a kind of base station, and this base station comprises:

First confirms unit 301, be used for confirming the current assignable resource collection of each antenna, and in said each resource collection each resource units for the channel quality of dispatched users;

Second confirms unit 302, be used for confirming the best channel quality of said channel quality, with this channel quality as the scheduling channel quality;

The 3rd confirms unit 303, is used for the resource units of confirming that said each antenna has said scheduling channel quality;

Scheduling of resource unit 304 is used to choose said resource units with said scheduling channel quality and dispatches.

Said second confirms that unit 302 comprises:

Sequencing unit is used for for said each antenna, and the pairing channel quality of each resource units in the assignable resource collection of this antenna is sorted;

Selected cell is used for choosing channel quality best in this ranking results for said each ranking results;

Acquiring unit is used for obtaining the said best channel quality of choosing of each channel quality, with this channel quality as said scheduling channel quality.

Said selected cell comprises:

The quantity unit is used for for said each antenna, confirms that this antenna has the quantity of the resource units of said scheduling channel quality;

Screening unit is used to select the maximum antenna of said quantity, from this antenna, chooses the resource units with said scheduling channel quality and dispatches.

Said scheduling of resource unit 304 comprises:

Resource Unit is used for choosing the resource units that an antenna has said scheduling channel quality;

Scheduling unit is used to utilize a said resource units of choosing to dispatch.

This base station further comprises:

Computing unit 305 is used for the data volume that can send based on this scheduling and the data volume that needs send, and calculates the remaining data volume that needs transmission;

Search unit 306, when the data volume that is used for sending at said remaining needs is not empty, from the current assignable resource collection of said each antenna, search the resource units that channel quality is said scheduling channel quality;

First notification unit 307 is used for when searching the unit and finding the resource units that satisfies condition, notifying the said resource units that finds of said scheduling of resource unit selection to dispatch said.

This base station further comprises:

Channel updating block 308 is used for when searching the unit and not finding the resource units that satisfies condition, from said each resource collection, searching the resource units that channel quality is lower than said scheduling channel quality said;

Second notification unit 309 is used to notify the said resource units that finds of said scheduling of resource unit selection to dispatch.

This base station further comprises:

Whether judging unit 310 is used to judge data volume that this scheduling can send more than or equal to the scheduling threshold value that is provided with, if not, then notify said computing unit to calculate the remaining data volume of sending of needing.

This base station further comprises:

End unit 311, the data volume that is used for can sending in this scheduling of said judgment unit judges are during more than or equal to the scheduling threshold value that is provided with, and scheduling of resource finishes, and utilize resource units in the scheduling result to carry out data and send.

On total, beneficial effect of the present invention is:

In the scheme that the embodiment of the invention provides, dispatch through choosing in all antennas the best resource units of current channel quality, thereby for the user provides better service, system resource is reasonably used.

Further, after once dispatching, whether satisfy the scheduling threshold value that is provided with through judging the data volume that this scheduling can be sent; The data volume that can send in this scheduling is during less than the scheduling threshold value; Just proceed scheduling of resource,, can effectively avoid the more resource of some CUs with the condition that the scheduling thresholding is accomplished as scheduling; And some other user's the situation less than service makes system better for more user service is provided.

Further; Need the data volume of sending in residue also; And the respective channels quality is under the non-existent situation of resource units of scheduling channel quality, through reducing CQI, chooses the resource units that channel quality is lower than the current scheduling channel quality and dispatches; Scheduling of resource is more flexible, and has well guaranteed QoS.

Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, belong within the scope of claim of the present invention and equivalent technologies thereof if of the present invention these are revised with modification, then the present invention also is intended to comprise these changes and modification interior.

Claims (16)

1. the resource regulating method based on orthogonal frequency division multiplexing multiuser multiple antennae is characterized in that, this method comprises:

Confirm the current assignable resource collection of each antenna, and in said each resource collection each resource units for the channel quality of dispatched users;

Confirm channel quality best in the said channel quality, this channel quality as the scheduling channel quality, and is confirmed the resource units that said each antenna has said scheduling channel quality;

Choosing said resource units with said scheduling channel quality dispatches.

2. the method for claim 1 is characterized in that, confirms channel quality best in the said channel quality, and this channel quality is comprised as the scheduling channel quality:

For said each antenna, the pairing channel quality of each resource units in the assignable resource collection of this antenna is sorted;

For said each ranking results, choose channel quality best in this ranking results;

Obtain best channel quality in said each channel quality of choosing, with this channel quality as said scheduling channel quality.

3. the method for claim 1 is characterized in that, chooses said resource units with said scheduling channel quality and dispatches and comprise:

For said each antenna, confirm that this antenna has the quantity of the resource units of said scheduling channel quality;

Select the maximum antenna of said quantity, from this antenna, choose resource units and dispatch with said scheduling channel quality.

4. like claim 1 or 3 described methods, it is characterized in that, choose a said resource units and dispatch with said scheduling channel quality.

5. the method for claim 1 is characterized in that, this method further comprises:

The data volume that the data volume that can send according to this scheduling and needs send; Calculate the remaining data volume that needs transmission; If the remaining data volume that needs to send is not empty; Then from the current assignable resource collection of each antenna, search the resource units that channel quality is said scheduling channel quality,, then choose the said resource units that finds and dispatch if find.

6. method as claimed in claim 5 is characterized in that, is not finding channel quality when being the resource units of said scheduling channel quality, and this method further comprises:

From said each resource collection, search the resource units that channel quality is lower than and approaches most said scheduling channel quality, choose the said resource units that finds and dispatch.

7. method as claimed in claim 5 is characterized in that, before calculating the remaining data volume that needs to send, this method further comprises:

Whether judge data volume that this scheduling can send more than or equal to the scheduling threshold value that is provided with, if not, the remaining data volume of sending of needing then calculated.

8. method as claimed in claim 7 is characterized in that, when judging data volume that this scheduling can be sent more than or equal to the scheduling threshold value that is provided with, this method further comprises:

Scheduling of resource finishes, and utilizes the resource units in the scheduling result to carry out the data transmission.

9. a base station is characterized in that, this base station comprises:

First confirms the unit, be used for confirming the current assignable resource collection of each antenna, and in said each resource collection each resource units for the channel quality of dispatched users;

Second confirms the unit, be used for confirming the best channel quality of said channel quality, with this channel quality as the scheduling channel quality;

The 3rd confirms the unit, is used for the resource units of confirming that said each antenna has said scheduling channel quality;

The scheduling of resource unit is used to choose said resource units with said scheduling channel quality and dispatches.

10. base station as claimed in claim 9 is characterized in that, said second confirms that the unit comprises:

Sequencing unit is used for for said each antenna, and the pairing channel quality of each resource units in the assignable resource collection of this antenna is sorted;

Selected cell is used for choosing channel quality best in this ranking results for said each ranking results;

Acquiring unit is used for obtaining the said best channel quality of choosing of each channel quality, with this channel quality as said scheduling channel quality.

11. base station as claimed in claim 9 is characterized in that, said selected cell comprises:

The quantity unit is used for for said each antenna, confirms that this antenna has the quantity of the resource units of said scheduling channel quality;

Screening unit is used to select the maximum antenna of said quantity, from this antenna, chooses the resource units with said scheduling channel quality and dispatches.

12., it is characterized in that said scheduling of resource unit comprises like claim 9 or 11 described base stations:

Resource Unit is used for choosing the resource units that an antenna has said scheduling channel quality;

Scheduling unit is used to utilize a said resource units of choosing to dispatch.

13. base station as claimed in claim 9 is characterized in that, this base station further comprises:

Computing unit, the data volume that data volume that is used for can sending according to this scheduling and needs send is calculated the remaining data volume that needs transmission;

Search the unit, when the data volume that is used for sending at said remaining needs is not empty, from the current assignable resource collection of said each antenna, search the resource units that channel quality is said scheduling channel quality;

First notification unit is used for when searching the unit and finding the resource units that satisfies condition, notifying the said resource units that finds of said scheduling of resource unit selection to dispatch said.

14. base station as claimed in claim 13 is characterized in that, this base station further comprises:

The channel updating block is used for when searching the unit and not finding the resource units that satisfies condition, from said each resource collection, searching the resource units that channel quality is lower than and approaches most said scheduling channel quality said;

Second notification unit is used to notify the said resource units that finds of said scheduling of resource unit selection to dispatch.

15. base station as claimed in claim 13 is characterized in that, this base station further comprises:

Whether judging unit is used to judge data volume that this scheduling can send more than or equal to the scheduling threshold value that is provided with, if not, then notify said computing unit to calculate the remaining data volume of sending of needing.

16. base station as claimed in claim 15 is characterized in that, this base station further comprises:

End unit, the data volume that is used for can sending in this scheduling of said judgment unit judges are during more than or equal to the scheduling threshold value that is provided with, and scheduling of resource finishes, and utilize resource units in the scheduling result to carry out data and send.

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